Ophthalmic mounting



06L 1941- J. J. POMERANi Er AL 2,257,811

OPHTHALMIC MOUNTING Filed Feb. 19, 1940 INVENTORS A'TTMEWEYS I PatentedOct. 7, 1941 r UNITED STATES PATENT, OFFICE OPHTHALMIC MOUNTING Jacob.J. Pomeranz, Brooklyn, and Vincent Tanasso, Harrison,,N. Y.

Application February 19, 1940, Serial No.3l9,592 2 Claims. (01. 8H7)This invention relates to improvements in secured the lens straps 9having the lenses seophthalmic mountings and has particular refercuredthereto in the customary manner. Extendence to that type in whichmembers of the frame, ing rearwardly from the straps 9 are t p r usuallyreferred to as brow armsextend along the i 10 having the usual nose padsll mounted on upper edges and to the rear of the lenses. thefreeextremity thereof.

Mountings of this type have been provided At a point adjacent the frontend of the pad wherein the brow arms, at their outer ends, are arm IDand rearwardly of the associated lens strap unattached to the lenses andterminate in end 9, said arm has extending upwardly therefrom the piecesto which temples are secured. Such concurved brow arm I2, thecurvatureof which-constructions have the drawback that the undue relaforms tothat of the upper edge of the adjacent tive lateral movements whichoccur between the lens" I. Said brow arm l2 extends in a plane to lensesand arms i th handling of th eyethe rear of the lens 1 and in slightlyspaced reglasses, sometimes results in the bending of said lationthereto. Adjacent the outer extremity of arms or the placing ofexcessive strain upon the the arm the same is divided to form arearwardlenses at their points of attachment to the frame ly projectingend piece l3 to which the front adjacent the inner ends of said arms.end of the temple I4 is pivotally connected in the The present inventionis designed to overcome usual manner, and to further form an extensionthe above dimculty, by providing the outer end I5 of the brow arm whichis also disposed to of each brow arm with a lens engaging portion, therear of the lens I in spaced relation thereto. in the form of a clip orits equivalent, which is This extension 15 may be of any length desiredfreely engaged with a lens in such manner that so that it will terminateeither above or below relative lateral movements between said lens andthe horizontal axis of the lens, and is utilized to brow arm will beprevented. carry a means which is freely engageable with The inventionfurther contemplates an imthe lens to act to retain said lens againstlateral proved construction of brow arm in which the movement withrespect to the brow arm. Said same is pivotally mounted upon a part ofth means is preferably in the nature of a U-shaped frame for swingingmovements toward and away clip formed at the extremity of the extension15 from its operative position behind the associated a d disposedforwardly of the Plane of e b ew lens, and in which said arm is providedwith a arm so that the edge of e lens y b rec ived lens-engaging cliphaving free contact with opin the clip with the latter having its tWOWings posed surfaces of said lens to prevent lateral freely engaged withthe opposed outer and inner movements between the lens and arm when thesurfaces of the lens. The space between the latter is in its operativeposition. wings or sides of the clip H5 is equal to the thick- Theinventive idea involved is capable of re ness of the lens so that whenthe latter is enceiving a variety of mechanical expressions, some gagedin Said p y lateral Shifting etween e of which are shown in theaccompanying drawing lens and the brow arm will be prevented as longwherein: as said arm is in its normal position extending Figure 1 is afront elevation of an ophthalmic along the pp edge 0f e le s. Should itbe mounting constructed in accordance with the in- 4 desired to releasethe lens from the clip it vention. 0 is only necessary to lift the browarm slightly to Figure 2 is an enlarged fragmentary top plan disengagesaid clip and a reversal of this moveview thereof. ment will cause theclip to again engage the lens Figure 3 is a fragmentary perspective viewof a due to the resiliency of the material of which the portion of themounting shown in Figures 1 and 2. brow arm is made.

Figure 4 is a fragmentary front elevation of In the form of theinvention shown in Figures another form of mounting wherein the brow arm4 t0 6, provision is made for pivotally mounting is adjustable relativeto its associated lens. the brow arm in a plane substantially parallelFigure 5 is a top view of the portion of the to that of the lens, asindicated in the dotted line mounting shown in Figure 4, and r positionof Figure 4. This pivotal mounting of Figure 6 is afragmentaryperspective view illus- 00 the brow arm permits of thorough cleansing oftrating the pivotal mounting of the brow arm. the lens, particularlyalong the upper edge there- Referring more particularly to Figures 1 to3, of Where some difficulty may be experienced in numeral 1 indicateslenses which are carried by cleaning the rear surface of the lens if thearm the frame or mounting that consists of a bridge 8 were not capableof being moved away from the to the ends of which are soldered orotherwise lens as indicated. For the purpose of pivotally mounting thebrow arm, it is found preferable to employ the portion of the associatedpad arm I0 adjacent the lens strap 9. Thus, the arm l0 may be reduced indiameter as indicated at I! to form a bearing for the sleeve 18 carriedby the inner end of the brow arm I2, said sleeve being fitted upon thearm I0 so that the arm l'2 will be capable of swinging about thehorizontal axis of said arm l0 and thus in a plane substantiallyparallel to that of the associated lens.

In this construction involving the pivotal mounting of the brow arm,means are provided for releasably retaining the outer end of the arm inengagement with the lens 1. This is preferably accomplished by providingthe edge of the lens with a small notch or indentation H! which isadapted to receive a similarly formed projection 20 extending from theinner surface of the bight of the clip IS. The notch and projectionprovide a means for frictionally retaining the brow arm in its normal oroperative position relative to the lens and due to the free engagementof the clip l6 with said lens, it is apparent that the brow arm may beswung upwardly about its pivot by exerting a slight pressure upon theend piece l3 sufiicient to disengage the projection 20 from its notch.

What is claimed is:

1.,In an ophthalmic mounting, a bridge for a pair of lenses, pad armscarried by said bridge, brow arms extending along the rear edge of eachlens and each having a sleeve at its inner end embracing one of said padarms to form a pivotal mounting for said brow arm, the outer extremityof each arm having an end piece for attachment to a temple, an extensionfor said arm projecting beyond said end piece in the direction of thecontour of the edge of the associated lens and having a clip looselystraddling said lens, said clip and lens having interengaging means toreleasably retain said arm against pivotal movement.

2. In an ophthalmic mounting, a bridge for a pair of lenses, lens strapscarried by said bridge,

'brow arms extending to the rear of said lenses and each provided at itsinner end with a pivotal mounting, a bearing for said mounting wherebysaid arm is capable of vertical movement relative to its associatedlens, the outer portion of each arm being divided to form a rearwardlydirected end piece for attachment to a temple and to further form adownwardly directed temporal extension providing a continuation of thebrow arm below said end piece, the lower end of said extensionterminating approximately opposite said lens strap, and a lens clipcarried by and arranged forwardly of the lower end of said extension forstraddling engagement with a lens. I

JACOB J. POMERANZ. VINCENT TANASSO.

